of t r o y



` 2 Sheets-SheetL J. KEEP.

Cooking Sieve.

Patented )une w69.,

bmi/@Mw N. PETERS Prowuuwmphen wmlnglm. Ilz;

2 Sheets Sheet 2.

Patented June 1, 1869;

'mne'sea wwwa/QL WQ J. K n Ye P 0F 'fr Letters Patent'N 90,

RQ Y, N E WV 850,'datcd Jun-c1, 1.869.'

COOKING-STOVE.

The 'Schedle referred to :in these Letters Patent and making part of the same.

To all whom 'it muy concern Be it known that I,W. J. KEEP, ot Troy', in the county of Rensselaer', andin the State of New York, hare invented certain new' and useful Improvements in Seeking-Stoves; and do hereby declare that the following is a full, clear, and exact description ther-eci', reference being had to the accompanying drawings, making a p art of thisspecication, in which- Figure l is a side elevation of a cooking-stove as improved;

` Figure 2 isla .vertical longitudinal section of the same, showing the internal arrangement of the'ditierent parts;

Figure 3 is a front elevation with the doors in front ofthe fuel-chamber and ash-pit open;

Figure 4 is a vertical' cross-section oi the same on i a line passing through the centre of the fuel-chamber;

in combination with th inclchamber and ash-tube,

and

Figure showing tl damper and aperture thro to the fuel-chamber.

Letters of like naine an each of -the figures. l

This invention is an improvement upon the patentv of 1).?. Stewart forma'cooking-stove, issued April 12, 1859, and reissued May 17, 1864, and again April 7, 1868; and

It consists in the employment and .arrangement of dues upon either side of the ashjtnbe, which extend from the space between the front doors and the front plate of the fuel-chamber downward and backward into the space v` hetween the bottoms of. said fuel-chamber and ash-tuheand the shield-plate, and, incombinat-on with said shield-plate, furnish a passage into 4the oven for acurrent of air heated by contact with the front piate of said fuel-chamber, substantially as andf'or the `purpose herein 5 is a front eiei'atiou of theash-pit door, ie construction and arrangement of the ughfwhich. air is admitted d'kind refer to like parts in after described;

1t also consists in the employment and arrangement p of a shield-platebeneath and. in rear of the ash-tube and i'uehchamber, for the'ipurpose ofprotc oven from the intense heat radiated from said ash-tube audiotel-chamber, and also to furnish a passage orilue side oi the ash-tune'fonthezadrnission intothe oven .l of heated air ioln the^spacchetween the front plate of said fuelaehaniherand the front doors, said air being 'further hated'by contact withftlie surfaces of said A as will he fully 'set forth nthe employment and arrangement -plate within thehack centre ting the radiation of heat and in combination with o furnish a passage or liuc 1t also consistsi of a double-back oven M flue, for theipnrpose ofpeven a double-top. evcinplate, t

through which the current of air which enters from cting the e aforesaid dues upon yneitherv 'thefront of the stove, niay pass into the combustionlue, and also to prevent ashes from falling into v'the oven through the lair-jets or passages, substantially as and for th/epurpose hereinafter shown and described.

It-also' consists in the employment and construction of solid front plates foi-'the fuel-chamber und ash-tube, and'ot a. solid hearth, so that no air shall enter said fuel-chamber from in front, or through the grate, except such as may be admitted from beneath said hearth,- whereby the openings into .said fuel-chamber are reduced to the smallest possible number, substantially as shown and for the purpose set forth.

of an opening for the admission of air to the fuelchamher beneath, and inV combination with .a solid hearth, in themanner and for the purpose substantially as hereinafter specified.

` It also consists in the form ofthe openings through the damper and door ofthe ash-pit, whereby the quan# tity of air admitted to the fuel-chamber, can he readily graduated, from the largest amount required to just a sufi'icient quantity to keep ,the tire alive, said openings being rectangular in one plate, while in the other plate one side of each opening is eitended forward in the form of au obtuse angle, as is hereinafter' fully dei scrihed.

It 'also consists in dropping the bottom plate in front of the stove, for kthe purpose of giving increased depth to the ash-pit and a larger opening for the removal-of ashes from the bottoni dues, substantially as herein set forth.

It also consists in the employment and arrangement of suitable doors communicating with the space in front of the fuel-chamber, in combination with the high, solid hearth, substantially as hereinafter shown and for the purpose set forth.

lIn the annexed drawings- A reprgsentsthefuel-chamber, extending across the fixent end of the stove, and suspended within the front and upper corner of the oven B, the lower partof `which extends forward and below said fuel-chamber to or beyond the front'plate thereof.

The 1el-charnber contains a grate, af, which may be of any suitable construction, immediately 'below which is an' ash-tube, C, secred to said fuel-chamber, and extending forward and downward into an ashpit,` D, so that the ashes which lfall through said grate shall be deposited within a suitable receptacle placed within said ash-pit. Y The ash-pit D is formed by extending the bottoni and side plates E and F, arid raising the hearth G; but in order that the depth of said ash-pit may be increased, and, at the same time, the proper incline maintained in the ash-tube,r the bottom. plate E is dropped downward about three inches, or thereahouts, from a point in a line with the front edge of the stove.

It also consists in the employment and arrangement I a chamber between the front oi'fsaid fuel=chamber and the front of the stove, which 'chamber lis for the purpose of receiving, containing, and heating such air as maybe admitted theretobefore it entersthe oven.

L L represent .two doors, hinged to the front plate I, through which access may be had to the chamber K, said doors being providedwith apertnresl l, of sniiicientA capacity-toadmit the necessary quantity of air to said chamber.

The ash-tube O correspondsin width to the bottom oi`the fuel-chamber, to which -it is joined, and, as the length of .the bottom of said fuel-chamber. is less than the width of the stove, it will be seen that a space,

M, is left between cach side plate Fand the end of 'said fuel-chamber and edge of said ash-tube, which space yextends from the chamber K downward and backward into the oven, and forms a flue for `the pasf sage of heated air from' 4saidchamber into said oven.

The inclined back plate of the ash-tube c', back plate of the fuel-chamber a, and the plate forming the under side of the combustion-due n, constitute and form the upper portion, covering, or plate of the oven B; but as the heat radiated from said ash-tube and -combustion-linewould prove too great in some parts ofthe oven, unless intercepted and properly diffused,- provisions are madefor the accomplishment of this object, as is hereinafter fully described.

Secured tothe front plate of the oven b, or to the bottomV plate of the ash-tube c', near the point where `said plates are united, is a shieldfplate, O, which extends upward and backward at a less angle of inclination than saidplate c', s0 as toleave a space`between the upper side of said 'shield-plate and said ash-tube plate. l.

The 'edges vof the shield-plate O are joined tothe side plates of the-stove'F, so that airentering through the Iiues M M, is compelled to pass upward beneath `the lower side of the' ash-tube c', before it can escape `into the oven, by which means it becomes highly heated. It* will be seen that the shield-plate O not only pre vents the direct radiation of heat from the lower plate of thev ash-tubec, but also prolongs the iiues M M, and-largely increases the heating-surface over which the4 air, enteling through said tlues, is compelled 'to pass before being admitted to the oven.

Secured `near the top of the oven B, directly beneath the plate n, forming the .bottom of the combustioniiue N, is an additional topv oven-plate, P, which cx-- te'nds backward from the back plateoi' the fuelecam; ber a, to or near the back ovenfplate Il', and crosswise to or near the side plates of the stove F, so as to prevent radiation of heat from the combustion-flue N, and also to prevent ashes from falling int the oven through the air-jet apertures n. a

R represents anadditional back oven-plate, placed within the back centre-flue/S, near to and in rear of the back oven-plate lf, so as to leave an air-space, T, between the oven B and said back centre-line S, and prevent radiation of heat from said oven into said due. 1f now` an opening, t, be made through the back oven-plate'b' into the'air-space T, at or near the bottom of'the oven B, and another opening, t', be made through said plate, nearthe top of the oven, so as to connect said air-'space T with the space between the topoven-plates n and P, a line will be formed through which the air admitted to the oven through the dues M M, will be drawn into the combustion-line N, (as indicated by the red arrows inl iig. 2,) and, as the ascending column of air through the space or ilue T will have -nearly or quite as high a temperature as .the de` stated, are solid, no air can enter said fuel-chamber A vabove said hearth, the only means of' access for such being from beneath the grate a through the ash-tube C, which is only open at its lower end, where it en ters the ash-piti), so that it will be easy to regulate or entirely 'cutoi' the supply of air,-as but one opening into said ash-pit will be required, which opening 4will s erve furthe double purpose :ofthe admission of air and the removalof' ashes.

Directly beneath the hearth G, in. the front 0f the ash-pit D, isa door, V, through which accessishad to said aslxpitl,"an'd also to the lower4 flues, for the pur pose of removing ashes by means ofthe opening H.

A. slide or damper, c, is arranged in or upon said door in the lusual manner, and serves to regulate the supply of air to the fuel-chamber.

air' as may be required for thepurposes of combustion,

The openings x a: x are rectangular inform, 'or with parallel sides in either the damper c or door-plate V, while, in the Opposite'plate, one side of each corre sponding opening is extended forward in the form ci an obtuse angle, so that when said damper is nearly closed, the openings'assume a triangular shape,and maybe diminished insize until capable of admitting suliicient air only to keep the xfire alive or burning, thus allowing the fire to be regulated with greater exactness and ease than by any other -form ofA openings.v Although the' form 4of opening described .isrbelevedr to be most advantageous, it will b e readily seenv that any other arrangement of the' openings in the slide and plate, by which their' front or rear edges respec tively shall be at an angle with,'instead of parallel to each other, will produce the same result, and be substantially the same, so that I do not confine myself to the particular form described, but claim the construc tion and use of any openings which are their equivalent.

Having thus fully set forththe nature and meritsoi my invention,

What I claim as' new, and desireto secure by Letters Patent, isv 1. The employment Vand arrangement of the lines M M, in vcombination with the heating-space or chainber K and shield-plate O, for the purpose of supplying a continual current of highly-heated-air to the oven, substantially as herein shown aud described. t

2. Also, the employment and arrangement ci` the shield-plate O beneath and in rear of' the fuel-chamber A, and ash-tube G, for t-he purpose of protecting the -oven from the intense heat radiated from said fuelchamber and ash-tube, and also in .combination with the hot-air chamber K and lues M M, to furnish means whereby the air admitted to the oven through said lues shall be compelled to pass over the front and end plates of the fuel-chamber and the entire outer surface of the ash-tube, and become highly heatedvby contact with the surfaces of said fuel-chamber and ashtube before entering the oven, substantially as herein specitied.

.3. Also, theI employment andarrangement of' the additional top oven-plate P, near the top of the oven B, for the purpose of protecting said oven from the heat radiated from the combustion-flue N, and to pre'u vent ashes from fallingf-into said oven through theair jets or passages n', substantially as herein shown and described.

5. Also, the employment and arrangement of the soiid raised hearth G, which, in combination with the solid front plates of the ash-tube c and fuel-,chamber af, prevents the entrance of air to said fuel-chamber above said hearth, substantially as herein shown and described. v

6.- Also, the employment and'arrangelent of an opening for the admission of air to the hiel-chamber beneath and in combination with the solid hearth G,

in the manner end for the purpose substantially as herein set forth. l

7. Also, the employment 'and construction ofi a damper or slide for the admission of air to the fuelchamber, in which the openings are so arranged' as that their front or rear edges shall be at an angle with,

instead ofvparallel to the front or rear edges of the corresponding openings in the plate beneathl said damper, substantially' as and for the purpose shown.

8. Also, dropping or offsetting the bottom plate E at or near the front of the stove, for the purpose of giving increase-d depth to the ash-pit, which is situated entirely or principally forward of the front plate oi said stove, substantially as herein shown and described.

9. Also, the combination and arrangement of the extended and dropped or offset bottom plate E, extended side plates F E, solid raised hearth G, and tiont platefor door V, for the purpose of producing an ash-pit, substantially as shown and speciiied.

10. Also, the employment and arrangement of snitoble doors, communicating with the Vhot-air space K, in front of the fuel-chamber A, in combination with thefhigh 'solid hearth G, substantially as herein shown and forthe purpose set forth.

In testimony that I claim the foregoing, I have hereunto set my hand, this 9th day of March, i869.-

WV. J. KEEP.'

Witnesses:

Geo. S. Persone, EDM. F. BROWN. 

